CVE-2026-30875 HIGH

CVE-2026-30875: Chamilo LMS: Authenticated RCE via H5P Import

Vendor Chamilo
Product chamilo-lms
Weakness CWE-94 · Code injection
Published March 16, 2026
Last update March 16, 2026

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Chamilo LMS is a learning management system. Prior to version 1.11.36, an arbitrary file upload vulnerability in the H5P Import feature allows authenticated users with Teacher role to achieve Remote Code Execution (RCE). The H5P package validation only checks if h5p.json exists but doesn't block .htaccess or PHP files with alternative extensions. An attacker uploads a crafted H5P package containing a webshell and .htaccess that enables PHP execution for .txt files, bypassing security control. This issue has been patched in version 1.11.36.

Key dates

02Disclosure timeline

March 16, 2026 CVE published
March 16, 2026 Record updated